4044-XXX
Heavy background
Poor development or poorly charged toner particles cause excessive background. This is more noticeable as the toner cartridge nears end of life.
FRU | Action |
|
|
Models E310 & E12 | Make sure toner cartridge is |
Toner Cartridge | correctly installed and the high |
| voltage contacts are clean. If the |
| cartridge is installed correctly, try a |
| new cartridge. |
|
|
Model E310 | Check the contacts for correct |
HVPS Contacts | installation and contamination where |
HVPS Board | contact is made with the toner |
Engine/LVPS Board | cartridge and HVPS Board. Clean as |
| necessary. If this does not correct |
| the problem, replace the following |
| FRUs one at a time in the order |
| shown: |
| HVPS Board |
| Engine/LVPS Board |
|
|
Model E312 | Check the contacts for correct |
HVPS Contacts | installation and contamination where |
HVPS Board | contact is made with the toner |
Engine Board | cartridge and HVPS Board. Clean as |
| necessary. If this does not correct |
| the problem, replace the following |
| FRUs one at a time in the order |
| shown: |
| HVPS Board |
| Engine Board |
|
|
